#282C58
Closest named color: Prussian Blue (#1D3557). oklch(31.4% 0.078 277), rgb(40, 44, 88).
Aa
White text reads best on this color (13.19:1).
About this color
#282C58 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.078 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.030 away. White text reads best on it, at 13.19:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.59:1 |
| White text | 13.19:1 |
Values
| HEX | #282C58 |
| RGB | rgb(40, 44, 88) |
| HSL | hsl(235, 38%, 25%) |
| OKLCH | oklch(31.4% 0.078 277) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #282C58 | 13.19:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #282C58 | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #282C58 text on white | 13.19:1 | AAA | Lc 99.4 | Preferred for body text |
| #282C58 text on black | 1.59:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D0D7FC
oklch(88.6% 0.052 276.9)
-
Step 300
300
#B1BCFC
oklch(81% 0.091 276.6)
-
Step 400
400
#8A96FB
oklch(70.7% 0.147 276.8)
-
Step 500
500
#7078F8
oklch(63.1% 0.188 276.9)
-
Step 600
600
#5B5CE7
oklch(55.5% 0.205 277.1)
-
Step 700
700
#4B4BC9
oklch(49.1% 0.19 276.8)
-
Step 800
800
#3D3EA3
oklch(42.6% 0.159 276.8)
-
Step 900
900
#343781
oklch(37.8% 0.122 277.1)
-
Step 950
950 (this color)
#282C58
oklch(31.4% 0.078 277)
#282C58 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #19325A | 0.025 |
| Deuteranopia (no green cones) | #142E57 | 0.026 |
| Tritanopia (no blue cones) | #15353D | 0.068 |
| Achromatopsia (no color) | #303030 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282C58
#282C58
oklch(31.4% 0.078 277)
- #3B3100
#3B3100
oklch(31.5% 0.065 96.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #282C58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.030
- Marine #042E60 ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.041
- Gunmetal #293241 ΔE 0.050
- Marine Blue #01386A ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.056
- Oxford Blue #1B263B ΔE 0.059
- Midnight Green #073B4C ΔE 0.063
Use #282C58 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.